Improved spring-seat for chairs, cars, carriages



'dilated ,mes

titte-nt' @time l Letters Patent No. 94,17 9, dated Aug-ust 3l, 1869.

IMPROVED SPRING-SEAT FOR CHAIRS, CARS, CARRIAG-ESA, &c.

The Schedule referred to in these Letters Patent and making part of the same.

To all to rwhom these presents shall come- Be it known that I, J.- DEAN BONNEY, of Pembroke, in the county of Plymouth, andConnnonwealth of Massachusetts, have madev a new and useful invention of an Improved Spring-Seat for Chairs or for RailwayfCarriages or other Oonveyances and do hereby declare the following to be a full, clear, and exact description thereof, due reference being had to the aeeompanying drawings, making part of this specification, and in whieh- Figure l is an invelted perspective representation of the interior of a seat in which my invention is embodied;

Figure 2 being a vertical section of the same.

The object of the invention comprising the subjectmatter of this patent is to provide a seat or rest for use in various land-conveyances, or for bed-bot-v toms, Ste., which shall possess the properties of strength, durability, and cheapness, combined with suicient flexibility to vitiate the jarring of the earriage; the seat, under my construction of parts, also presenting au even and smooth appearance of its side covering, under all conditions of service.

The invention consists in the employment of two open or skeleton frames, of equal size, or thereabout, placed one over the other, andconnected together primarily by a dually-arranged series of springs which perform the offices both of hinges to the two Iframes and as a yielding support to the uppermost one; and secondarily, by a surrounding band of any suitable textile fabric, which serves as an edge to the seat formed by the two frames, and partially as a stop to limit the distance of separation ot' such frames, the top of the seat being composed of a stuffed cushion, applied to the upper frame, the whole ybeing as hereinafter referred to and explained.

By referring to the drawings above mentioned as accompanying this specification, a'nd which illustrate my invention, it will be seen that A A denote two open'rectangular flat frames, of about equal size, composed of wood or any suitable material.

These frames are placed bue over the other, are united in part aml principally by a series ot' springs, a a a a, duc., placed between them, the two frames being placed at such a dist-allee apart as to present the proper height for a portable seat for various conveyances, vehicles, or articles offurniture. y

The springs c al are each composed of a concentric coil, l, and two lateral prongs, c c, the latterbeing prolongations of the extrcmitiesloi' the coil, and running in about the same direction, and horizontally parallel to each other, as shown in iig. 2 ot' the drawings.

ln applying the springs a a, Sac., to tbcirfproper place, I aiiix the extremity of one prong iu a suitable manner to one of the bars of one fra-me, and its fellow prong to the next adjacent bar of the opposite frame, and I employ as many of these springs running longitudinally of the two bars, as practice may determine to be necessary or desirable, the two opposite bars of the frames A A' being provided, in like manner, with a corresponding number of springs.

I would call attention to the fact, that in iixing the springs e a in position, I dispose the upper prong of f each spring lupon alternate sides ot its coil, in order to prevent lateral swaying of the two frames, which would take place 'out for such disposition of the springs, or other extraneous means to accomplish such end.

A rod, B; is extended through the lbores of each range of springs, to support them in alignment with each other, and, in lsome instances, to prevent too great contraction of the coil.

The cushion of the seat is shown at C in the drawings, as composed of any suitablel fabric or material, and proper stuffing, after the common method of produeing such articles, such cushion being atlixed to the t I furniture.

The outer edges of the frames A A are united by a cireumseribing-band, D, of fabric similar to that of the cushion C, the two frames, in addition to such band, being furnished -with a number of stays, d d, &c., ot' webbing or other strong material' secured to each, for the purpose ot' relieving the band D of the strain which would otherwise be exerted upon it by the extension of the springs a a, it being understood, however, that the length lof these latterln'lentioned stays between the frames -A A is equal to the corresponding width of the band D, in order that the latter shall be preserved in an extended and smooth state upon 'divergence of such frames by the action of the springs, which takes place when the occupants weight is removed therefrom.l

To the outer extremity of each rod B, and the two frames A A', I atiix a strap, as shown at E, in the accompanying drawings, as an additional, though not necessary support to such parts.

In practically carrying out of my invention, itwill ben found desirable to vary the power, as well as the' number of the springs, according to the various uses to'which the seat is to be put.

One advantage resulting from the above-described arrangement of parts is that as the springs are not applied directly to or below the cushion, the unequal pressure, as well as rapid wear of seats thus provided, is avoided, and in this respect, as well as others, will make a valuable bed-bottom.

Another advantage of my invention is that the with such removal of such weight from the upper one.. Another advantage of my improved seat is that dnst` and dirt may be easily expelled from its cushion.

In addition to these advantages, my invention enables a spring-seat to be nianufaotured at small cornparative cost.

Claim.

Having thus described the nature and advantages of my invention,

XVhat I claim as novel and original in such invention, and desire to secure byLetters Patent of the United States, ,is-

The improved springeseat or bed-botton1 before described, consisting of the two frames A A' united by the springs a a, &e., and provided with the cushion C and band D, as explained, and with the stays d d, 86o., as accessories to the band, the whole being arranged and operating essentially in manner as hereinbefore set forth J. DEAN BONNEY.

Witnesses WILLIAM AYRES, ELIAS C. SCOTT. 

